That's one of my 4 targets! As for the Luminor, I'm no expert like Nicholas or Asi, but what I can tell you though, look through the catalogues and references, see which ones you like most and narrow them down. For me, a first luminor will most likely be the 000 or 005 logos. There's also the 111 and 112, 176 and 177 (both titanium casing). Think you can start on those. Boils down to what you like most in a luminor and which talks to you!
Cheers!
Lionel